Correspondence: PDF OnlySodium-lithium countertransport and sodium-hydrogen exchange: the dual modality hypothesis ReplyHardman, Tim; Lant, Ariel Author Information Department of Therapeutics, Chelsea and Westminster Hospital, 369 Fulham Road, London SW10 9NH, UK Journal of Hypertension 14(9):p 1153-1154, September 1996. Buy © Lippincott-Raven Publishers.